Osmotic Diarrhea.

Disaccharidase (lactase) deficiencies

Lactulose therapy (for hepatic encephalopathy, constipation)

Prescribed gut lavage for diagnostic procedures

Antacids (MgSO4 and other magnesium salts)

Primary bile acid malabsorption

Exudative Diseases

Idiopathic inflammatory bowel disease.

Typhlitis (neutropenic colitis in the immunosuppressed).